Eagle(EA): Moves like a Grasshopper ((0,1)+(1,1)Hopper , but deflects 90° either way on passing over the hurdle. The arrival square is adjacent to the hurdle.

Moose(M): Moves like a Grasshopper ((0,1)+(1,1)Hopper , but deflects 45° either way on passing over the hurdle. The arrival square is adjacent to the hurdle.

Imitator(I): Colorless piece; cannot capture; moves only in dependence of other pieces – its move being simultaneous to every piece’s move, parallel and of same length and direction. If a line piece’s move is imitated, the imitator’s path MUST NOT be blocked. Neither can the imitator be moved outside the board. If complete imitation is not possible, the respective move is illegal. This is even true for checks.